Coherence of Fluctuating Wind Speed and Along-Wind Force Power Spectrum of Tall Building

Yong Chul Kim; Sung Won Yoon

doi:10.4028/www.scientific.net/AMR.1025-1026.922

Paper Titles

Seismic Performance Evaluation on Cyclic Testing of Weak-Axis Column-Tree Connections
p.906

Simulation of Interference Characteristics of the Model Supporting Beams with Different Forms of Section in Wind Tunnel Test
p.910

Aeroelastic Vibration of Super-Tall Buildings
p.914

Time History Analysis of Steel Tall Buildings
p.918

Coherence of Fluctuating Wind Speed and Along-Wind Force Power Spectrum of Tall Building
p.922

Comprehensive Evaluation and Analysis of Water-Inrush Source in Wolonghu Coal Mine
p.926

Weight-in-Motion-Based Ambient Truck Characteristic Identification in Highway Bridges
p.930

Reinforced Concrete Deep Beams with Openings Strengthened Using FRP – A Review
p.938

Eigenvector Centrality Measurement Using Patent Information of Wind Power Energy
p.944

HomeAdvanced Materials ResearchAdvanced Materials Research Vols. 1025-1026Coherence of Fluctuating Wind Speed and Along-Wind...

Coherence of Fluctuating Wind Speed and Along-Wind Force Power Spectrum of Tall Building

Abstract:

In evaluating wind load effects on large-scale structures, correlations in the frequency domain (i.e., coherences) and power spectra of fluctuating wind speed should be evaluated in advance. Most existing formulas for coherence are expressed as exponential functions based on field measurement data for ease of mathematical treatment. However, these simple mathematical expressions have many limitations. In the present study, after examining the existing coherence formulas, a semi-theoretical formula was proposed, and the corresponding along-wind force power spectrum of a tall building with a square cross-section was numerically calculated. A comparison showed that both the coherence and along-wind power spectrum were in good agreement with those of actual wind tunnel data.